Here’s some choices of modes for editing crontab files,

Harley Gorrell

HarleyGorrell has written a crontab-mode.el (original page gone it seems, but get it from

From the commentary:

Ch. Tronche

A crontab-mode.el, includes an rsh to edit crontabs on remote machines,

Christopher D. Orr

crontab.el which comes with XEmacs. Works in Emacs too.

Save-buffer installs the crontab. Optionally keeps a copy in ~/.crontab too, if you don’t trust the crontab to look after it.

Errors from crontab resulting in the new content not stored don’t seem to be reported very well.